|
| Replace ignition | No | |
|
| module. | ||
|
|
| ||
Turn up thermostat. | No | Place a jumper across | No | |
the thermostat terminals. | ||||
Does the fan turn on? | ||||
| Does the fan turn on? |
| ||
|
|
| ||
|
| Yes |
| |
|
| Check thermostat wiring |
| |
|
| and replace thermostat if |
| |
|
| necessary. |
|
Yes
Is there power out
from pin 10 on
ignition module?
Yes
Is there power (230V)
at the burner?
No
Check relay wiring
(if applicable) and wiring
to the burner.
Yes
Remove Black & White
leads from the pressure switch; No place jumper between leads.
Does the fan turn on?
Yes
Replace pressure switch.
Remove obstruction. | Yes |
Replace Fan.
Yes
Unplug burner.
Does the fan turn freely?
No
Is the fan obstructed?
No
Fan bearings may have
failed. Replace fan.
16.1 Troubleshooting Flow Chart (Linear, Double Linear
Unplug burner and check
Is there spark at the igniter? No electrode and ignition wire. No
Are they damaged?
Yes
Replace electrode and ignition wire as needed.
65 of 75
Is the igniter gap
set at 3 mm?
No
Carefully reset gap
to 3 mm.
Replace automatic
control unit.
Yes | Is the flue pipe or | Yes |
the inlet of the | ||
| burner obstructed? |
|
| No |
|
Are the hoses to the pressure No switch secure and leak free?
Yes
Remove Black and Yellow No leads from the pressure switch;
place a jumper between leads.
Is there a spark?
Yes
Replace pressure switch.
Remove obstruction.
Repair, replace or
tighten hoses as necessary.
and U-Tube)
SECTION 16: TROUBLESHOOTING
